OpenSSL -- timing vulnerability

The OpenSSL project reports:

Microarchitecture timing vulnerability in ECC scalar
multiplication. Severity: Low
OpenSSL ECC scalar multiplication, used in e.g. ECDSA and ECDH, has
been shown to be vulnerable to a microarchitecture timing side channel
attack. An attacker with sufficient access to mount local timing
attacks during ECDSA signature generation could recover the private
key.